Woods is the defending champion, beating Steve Stricker by two shots for his second title of 2013.

"It's too early to tell," Woods said of competing at Doral. "I need treatment every day until Thursday to try to calm it down. We'll see how it is."

Sunday's withdrawal is not the first time Woods has left a tournament early because of injury.

He withdrew after the 12th hole of the final round at Doral in 2012, following his tee shot on the 12th hole. He drove in a golf cart to the parking lot, got in his car and left the premises, citing a left leg injury.

In 2011, he withdrew from the Players Championship in Ponte Vedra Beach (Fla.) after nine holes because of a knee injury. He did not play in the U.S. Open at Congressional Country Club (Md.), because of the injury.

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He also withdrew from the Nissan Open at Riviera in 2006, when he narrowly made the cut and withdrew from the final two rounds because of the flu. And as a 19-year-old amateur, he pulled out of the 1995 U.S. Open at Shinnecock Hills (N.Y.) because of a wrist injury he suffered while hitting out of deep rough.

Woods struggled early on Sunday following a 5-under 65 on Saturday.

That round was Woods' best on the PGA Tour this season and followed an opening-round 71 and second-round 69.

Woods, playing with Luke Guthrie, parred his first hole Sunday but bogeyed the second after missing the green on his second shot.

An errant tee shot on No. 3 went into a lake, and he ended up double-bogeying the hole.

A bogey on No. 4 followed before Woods saved par on No. 5.

Woods shanked his tee shot on No. 6, leading to his third bogey of the round. He birdied No. 7, parred No. 8 and bogeyed No. 9 before running off four consecutive pars.

After his final par on No. 13, he motioned for a tournament official before walking off the course and getting into a waiting van.

He issued a statement about the injury a short time later.

Guthrie finished his round without Woods, shooting a 2-over 72 for the day.

He said he noticed Woods was laboring during his round.

"He made a couple of uncharacteristic shots," Guthrie said of Woods. "The drive on 3 kind of was the first one.

"I didn't know if he wasn't feeling the greatest and kind of seemed like he might have been protecting, came up and out of it.

"I don't know. I didn't think much of it until, I forget maybe the first hole, 11, I noticed he was bending down gingerly."